ESP32-S3-WROOM encryption with USB interface for production?

Jonathan2892
Posts: 29
Joined: Tue Dec 07, 2021 4:04 pm

ESP32-S3-WROOM encryption with USB interface for production?

Postby Jonathan2892 » Fri Sep 23, 2022 1:30 pm

Hello,

I have project in which all GPIOs of the esp32-s3-wroom are used. I will have access to update the firmware via OTA and via the USB interface (GPIO19 and GPIO20). Why USB interface? -> Because then I do not need access to the BOOT and the EN pin, right?

But when I do the flash encryption with a pre-generated key, which I know and store at a safe place, can I still do updates via the USB interface with pre-encrypted firmware? Or do I need the UART0 interface for that?

Best,
Jonathan

mikemoy
Posts: 599
Joined: Fri Jan 12, 2018 9:10 pm

Re: ESP32-S3-WROOM encryption with USB interface for production?

Postby mikemoy » Sat Sep 24, 2022 4:41 pm

But when I do the flash encryption with a pre-generated key, which I know and store at a safe place, can I still do updates via the USB interface with pre-encrypted firmware? Or do I need the UART0 interface for that?
Just try it.

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